The most northwestern subspecies of lowland gorilla has dropped to about 200 to 300 individuals, most of which live inside protected areas in the forested mountains along the Cameroon-Nigeria border.
The expansion of farms, dry-season fires, and development activities such as roads are continuing threats to the gorillas' habitat, according to a new report.
The species was named one of the 25 most endangered primates in the October 27, 2007, report by the Primate Specialist Group of the World Conservation Union's Species Survival Commission and the International Primatological Society, in collaboration with Conservation International.